<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title>Returns the current row of a result set as an object</title>

 </head>
 <body><div class="manualnavbar" style="text-align: center;">
 <div class="prev" style="text-align: left; float: left;"><a href="mysqli-result.fetch-fields.html">mysqli_result::fetch_fields</a></div>
 <div class="next" style="text-align: right; float: right;"><a href="mysqli-result.fetch-row.html">mysqli_result::fetch_row</a></div>
 <div class="up"><a href="class.mysqli-result.html">mysqli_result</a></div>
 <div class="home"><a href="index.html">PHP Manual</a></div>
</div><hr /><div id="mysqli-result.fetch-object" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">mysqli_result::fetch_object</h1>
  <h1 class="refname">mysqli_fetch_object</h1>
  <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">mysqli_result::fetch_object</span> -- <span class="refname">mysqli_fetch_object</span> &mdash; <span class="dc-title">Returns the current row of a result set as an object</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-mysqli-result.fetch-object-description">
  <h3 class="title">说明</h3>
  <p class="para">面向对象风格</p>
  <div class="methodsynopsis dc-description">
   <span class="type">object</span> <span class="methodname"><strong>mysqli_result::fetch_object</strong></span>
    ([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$class_name</code></span>
   [, <span class="methodparam"><span class="type">array</span> <code class="parameter">$params</code></span>
  ]] )</div>

  <p class="para rdfs-comment">过程化风格</p>
  <div class="methodsynopsis dc-description">
   <span class="type">object</span> <span class="methodname"><strong>mysqli_fetch_object</strong></span>
    ( <span class="methodparam"><span class="type"><a href="class.mysqli-result.html" class="type mysqli_result">mysqli_result</a></span> <code class="parameter">$result</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$class_name</code></span>
   [, <span class="methodparam"><span class="type">array</span> <code class="parameter">$params</code></span>
  ]] )</div>

  <p class="para rdfs-comment">
   The <span class="function"><strong>mysqli_fetch_object()</strong></span> will return the current row
   result set as an object where the attributes of the object represent the
   names of the fields found within the result set.
  </p>
  <p class="para">
    Note that <span class="function"><strong>mysqli_fetch_object()</strong></span> sets the properties
    of the object before calling the object constructor.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-mysqli-result.fetch-object-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    <dt>
<em><code class="parameter">
result</code></em></dt>
<dd>
<p class="para">仅以过程化样式：由
<span class="function"><a href="mysqli.query.html" class="function">mysqli_query()</a></span>，<span class="function"><a href="mysqli.store-result.html" class="function">mysqli_store_result()</a></span> 或
<span class="function"><a href="mysqli.use-result.html" class="function">mysqli_use_result()</a></span>返回的结果集标识。</p></dd>

    
     <dt>
<em><code class="parameter">class_name</code></em></dt>

     <dd>

      <p class="para">
       The name of the class to instantiate, set the properties of and return.
       If not specified, a <strong class="classname">stdClass</strong> object is returned.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">params</code></em></dt>

     <dd>

      <p class="para">
       An optional <span class="type"><a href="language.types.array.html" class="type array">array</a></span> of parameters to pass to the constructor
       for <em><code class="parameter">class_name</code></em> objects.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-mysqli-result.fetch-object-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns an object with string properties that corresponds to the fetched
   row or <strong><code>NULL</code></strong> if there are no more rows in resultset.
  </p>
  <blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">此函数返回的字段名<em class="emphasis">大小写敏感</em>。</span></p></blockquote>
  <blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">此函数将 NULL 字段设置为 PHP <strong><code>NULL</code></strong> 值。</span></p></blockquote>
 </div>


 <div class="refsect1 changelog" id="refsect1-mysqli-result.fetch-object-changelog">
  <h3 class="title">更新日志</h3>
  <p class="para">
   <table class="doctable informaltable">
    
     <thead>
      <tr>
       <th>版本</th>
       <th>说明</th>
      </tr>

     </thead>

     <tbody class="tbody">
      <tr>
       <td>5.0.0</td>
       <td>
        Added the ability to return as a different object.
       </td>
      </tr>

     </tbody>
    
   </table>

  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-mysqli-result.fetch-object-examples">
  <h3 class="title">范例</h3>
  <div class="example" id="example-1708">
   <p><strong>Example #1 面向对象风格</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$mysqli&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">mysqli</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;check&nbsp;connection&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">mysqli_connect_errno</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect&nbsp;failed:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">mysqli_connect_error</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;exit();<br />}<br />&nbsp;<br /></span><span style="color: #0000BB">$query&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"SELECT&nbsp;Name,&nbsp;CountryCode&nbsp;FROM&nbsp;City&nbsp;ORDER&nbsp;by&nbsp;ID&nbsp;DESC&nbsp;LIMIT&nbsp;50,5"</span><span style="color: #007700">;<br /><br />if&nbsp;(</span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">))&nbsp;{<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;fetch&nbsp;object&nbsp;array&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">while&nbsp;(</span><span style="color: #0000BB">$obj&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">fetch_object</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf&nbsp;</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;(%s)\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$obj</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">Name</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$obj</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">CountryCode</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;free&nbsp;result&nbsp;set&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$result</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">close</span><span style="color: #007700">();<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;close&nbsp;connection&nbsp;*/<br /></span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

  </div>
  <div class="example" id="example-1709">
   <p><strong>Example #2 过程化风格</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$link&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;check&nbsp;connection&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">mysqli_connect_errno</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect&nbsp;failed:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">mysqli_connect_error</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></span><span style="color: #0000BB">$query&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"SELECT&nbsp;Name,&nbsp;CountryCode&nbsp;FROM&nbsp;City&nbsp;ORDER&nbsp;by&nbsp;ID&nbsp;DESC&nbsp;LIMIT&nbsp;50,5"</span><span style="color: #007700">;<br /><br />if&nbsp;(</span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$query</span><span style="color: #007700">))&nbsp;{<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;fetch&nbsp;associative&nbsp;array&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">while&nbsp;(</span><span style="color: #0000BB">$obj&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_fetch_object</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf&nbsp;</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;(%s)\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$obj</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">Name</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$obj</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">CountryCode</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;free&nbsp;result&nbsp;set&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">mysqli_free_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;close&nbsp;connection&nbsp;*/<br /></span><span style="color: #0000BB">mysqli_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

   <div class="example-contents"><p>以上例程会输出：</p></div>
   <div class="example-contents screen">
<div class="cdata"><pre>
Pueblo (USA)
Arvada (USA)
Cape Coral (USA)
Green Bay (USA)
Santa Clara (USA)
</pre></div>
   </div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-mysqli-result.fetch-object-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="mysqli-result.fetch-array.html" class="function" rel="rdfs-seeAlso">mysqli_fetch_array()</a> - Fetch a result row as an associative, a numeric array, or both</span></li>
    <li class="member"><span class="function"><a href="mysqli-result.fetch-assoc.html" class="function" rel="rdfs-seeAlso">mysqli_fetch_assoc()</a> - Fetch a result row as an associative array</span></li>
    <li class="member"><span class="function"><a href="mysqli-result.fetch-row.html" class="function" rel="rdfs-seeAlso">mysqli_fetch_row()</a> - Get a result row as an enumerated array</span></li>
    <li class="member"><span class="function"><a href="mysqli.query.html" class="function" rel="rdfs-seeAlso">mysqli_query()</a> - 对数据库执行一次查询</span></li>
    <li class="member"><span class="function"><a href="mysqli-result.data-seek.html" class="function" rel="rdfs-seeAlso">mysqli_data_seek()</a> - Adjusts the result pointer to an arbitrary row in the result</span></li>
   </ul>
  </p>
 </div>


</div><hr /><div class="manualnavbar" style="text-align: center;">
 <div class="prev" style="text-align: left; float: left;"><a href="mysqli-result.fetch-fields.html">mysqli_result::fetch_fields</a></div>
 <div class="next" style="text-align: right; float: right;"><a href="mysqli-result.fetch-row.html">mysqli_result::fetch_row</a></div>
 <div class="up"><a href="class.mysqli-result.html">mysqli_result</a></div>
 <div class="home"><a href="index.html">PHP Manual</a></div>
</div></body></html>
